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| User Manual
Technical product description
K-MT 1-8/D3
17
Available options
The following options are available for the dryer:
◊
Start-up device
◊
Signalling contacts of the control system & compressor synchronisation
◊
Regeneration gas return
◊
Dewpoint-sensing control
◊
Fine fi lter muffl er
◊
Nozzle kit
Start-up device
A start-up device basically consists of a pressure holding device, which is located at the rear
of the dryer. The pressure holding device ensures that pressure can build up in the dryer and
adsorption take place.
It is always required when an empty compressed air reservoir or an empty compressed air
system must be fi lled downstream of the dryer (e.g. following weekend shutdowns and when
the pressure in the compressed air system can frequently drop below the stated operating
pressure).
Signalling contacts of the control system & compressor synchronisation
The control system is equipped with a digital input for the synchronised operation with a
compressor. This feature allows for synchronised and thus effi cient dryer operation with
discontinuous compressor operation.
Compressor synchronisation helps reduce energy costs, as the dryer can be operated inde-
pendently of the compressor.
The compressor synchronisation controller is a higher-level controller than the pressure dew
point controller (see below). When both options are in place, the compressor synchronisation
controller is treated as the prime controller.
The control system can also be equipped with an optional operation signalling contact with
which the dryer operation can be monitored from an external device. Dryers with the optional
dewpoint-sensing control are equipped with such a contact as standard. It is used for the
transmission of operating signals and for the output of dewpoint alarms.
Regeneration gas return
When the compressor is switched off, the regeneration gas return ensures that regenera-
tion is continued, as soon as a certain compressed air volume is reached behind the dryer.
The regeneration process must be continued and ended so that the drying agent does not
become unusable prematurely.
Dewpoint-sensing control
With a dewpoint-sensing control system, you can operate the dryer in fi xed or variable
cycles. In the fi xed cycle, switchover is effected after a fi xed time period (usually after 5
minutes). In the variable cycle, the switchover is effected in relation to the dew point reached
and the charging of the drying agent . The adsorption time in the variable cycle amounts to
60 minutes maximum.
Fine fi lter muffl er
A fi ne fi lter muffl er is used to reduce the noise emission of the dryer to lower levels than the
standard muffl er can provide. If installed, the fi ne fi lter muffl er replaces the original installed
muffl er.
